Improvement in gang-plow



bar.

The fulcrum also turns on a pivot, right or left, on

' diritta tatra WORDEN J. BOYOE `ANI) `GEORGE W. IIAINES, OF MAINE PRAIRIE, CALI- FORNIA.

Lette'rs Patent No. 96,875, :lated No'rcmbcr I6, 1869.

IIWERCJVIEMENil` IN GANG-PLOW.

'he Schedule referred to in these Letters Patent and making part of the same.

nying drawings, and to the letters ofreference marked thereon.

Our invention relates to a device for raising and lowering tlie frame to gang-plows, and thereby regulating the depth t0 be cut; also, to the graduating oflthe width of the furrow, so that when the soil is damp and heavy a less furrow may be taken than when it is dry; also, to a device for regulating' the land and furrowwheels, se that the plows will be held in aposition pari allel to the surface of the ground.

To accomplish this object we attach a lifting-bar to the inner end of "the pole, with the fulcrum .beneath the drivers seat, which works up and down on a curved bar, provided with holes, in which operates a pin, by means of a spring attached to the side ofthe a plate to which it is attached.

For 'a better description of' our invention, reference is had to the accompanying drawings, of which- Figure lis a side elevation. Figure 2, a vertical section, taken back of the driveis seat.

Figure 3 is a plan of tongue and forward end of frame, showing the change-plate and its attachments a and b represent the flame, wit-lr ends bevelled to allow the pole to play.

The/pole 'or tongue c is held between the frame by a screw-bolt, d, and from this'point of vconnectionthe pole is bevelled at each side in both directions, so that it wilLpla-y right or left without obstruction, or coming in contact with the sides of the frame until the desired angle is attained. By thisA means the plows are turned to or from the land.

In 'order to hold the pole in position when these changes are made, we place a'st-irrup, e, upon the frame, which slides in ways or straps f f, one side of which is pierced 'to admit the pin g, that enters the regulating-holes h h, and has its seat in the frame.

In order to raise and lower the end of the draughtpolc, and move it right or left, we link to the vinner end of it a lifting-bar, t', whose fulcrum k is beneath the drivers seat, and turns on a plate,

This bar is caused to work up and down on a curved arm, l, whichis perforated with holes, through which passes a piu that is attached to a Spring-bar, m, so

that by lthc raising or lowering of the bar the end of the pole is raised or depressed, and moved right or leftv on the pivot l, and thereby the plow-points are elevated or depressed, and turned in or out of the ground.

The axles of the driving-wheels a a are each independent, and turn in half-oval journals o o, which are held to the axle-lied by clips o1 o1.

The outer boxes 02o2 are divided for conncctionand adjustment with the axle, which is turned to forni. bearings between shoulders.

From the cranks extend arms or levers 1) 1), which move ou circular perforated racks or plates fr r, and are held by straps p 1).

rIlhe ends of thc levers are provided with a springbar and pin, s, which passes through the lever and en` ters the holes in tue semicircular plate These levers are within easy reach of the driver, and by their operation the wheels can be raised or lowered, to impart to the plows a greater or less depth, and hold them in a position parallel to the surface of lthe ground which is being turned.

Having thus described our invention, we are well aware that crank-axles on gang-plows are known and in use; also, thatcircular racks or semicircular perforated plat-es are devices well known for regulating the driving-wheels; consequently,

What we claim as new in our device, and desire to secure by'Letters Patent, is

1. The machine described, consisting essentially of the frame a l), tongue c, adjusting-devices e g i k,

wheels u, and lever p, the whble being combined and y arranged for the purpose set forth.

` 2. The sliding stirrup e, moving in straps or ways f f at thetop of the frame, andheld in place by a pin, g, or their equivalents, substantially as set forth.

3. The lifting-har t, with its movable` fulcrum Ic, on the plate k', so that by its link-connection with the end of the tongue, the draught-pole can be thrown to the right or left, or the end raised and lowered, substantially as set forth.

In witness whereof, we have hereunto set our hands and seals.

WORDEN J. BOYOE. [L s] GEO. W. HAINES.- [L 8.]

IVitnesses:

J No. H. GUSHING, PATRICK BYaNn. 

